/*
 * By attaching this document to the given files (the �work�), you, the licensee,
 * are hereby granted free usage in both personal and commerical environments, 
 * without any obligation of attribution or payment (monetary or otherwise).
 *  
 * The licensee is free to use, copy, modify, publish, distribute, sublicence, 
 * and/or merchandise the work, subject to the licensee inflecting a positive 
 * message unto someone. This includes (but is not limited to): smiling, 
 * being nice, saying �thank you�, assisting other persons, or any 
 * similar actions percolating the given concept.
 * 
 * The above copyright notice serves as a permissions notice also, 
 * and may optionally be included in copies or portions of the work. 
 * 
 * The work is provided �as is�, without warranty or support, express or implied. 
 * The author(s) are not liable for any damages, misuse, or other claim, whether 
 * from or as a consequence of usage of the given work.
 */

package Proiect;

import javax.swing.JOptionPane;
import java.util.Arrays;

/**
 * Opens the specified web page in the user's default browser
 * 
 * @author stefan
 * 
 */
public class BrowserLaunch {

	static final String[] browsers = { "google-chrome", "firefox", "opera",
			"epiphany", "konqueror", "conkeror", "midori", "kazehakase",
			"mozilla" };
	static final String errMsg = "Error on trying to open the default browser!";

	/**
	 * @param url
	 *            A web address (URL) of a web page (ex:
	 *            "http://www.google.com/")
	 */
	public static void openURL(String url) {
		try { // attempt to use Desktop library from JDK 1.6+
			Class<?> d = Class.forName("java.awt.Desktop");
			d.getDeclaredMethod("browse", new Class[] { java.net.URI.class })
					.invoke(d.getDeclaredMethod("getDesktop").invoke(null),
							new Object[] { java.net.URI.create(url) });
			// above code mimicks: java.awt.Desktop.getDesktop().browse()
		} catch (Exception ignore) { // library not available or failed
			String osName = System.getProperty("os.name");
			try {
				if (osName.startsWith("Mac OS")) {
					Class.forName("com.apple.eio.FileManager")
							.getDeclaredMethod("openURL",
									new Class[] { String.class })
							.invoke(null, new Object[] { url });
				} else if (osName.startsWith("Windows"))
					Runtime.getRuntime().exec(
							"rundll32 url.dll,FileProtocolHandler " + url);
				else { // assume Unix or Linux
					String browser = null;
					for (String b : browsers)
						if (browser == null
								&& Runtime.getRuntime()
										.exec(new String[] { "which", b })
										.getInputStream().read() != -1)
							Runtime.getRuntime().exec(
									new String[] { browser = b, url });
					if (browser == null)
						throw new Exception(Arrays.toString(browsers));
				}
			} catch (Exception e) {
				JOptionPane.showMessageDialog(null,
						errMsg + "\n" + e.toString());
			}
		}
	}

}
